Please provide the zipped sources of a sample application showing this

(0021801)
mh (reporter)2019-05-04 13:09

The first attachment can be deleted, my mistake - sorry!
For the second: unzip it on a computer with 2 displays. Run it and click the button. No matter on which screen the application is, the alert will always be shown at the same position: at the bottom right of the main monitor.